AXISF41MainUnit
VideoandAudio
AudioInput
AnexternalmicrophoneoralinesourcecanbeconnectedtotheAudio-inconnector.ConguretheaudioinputsettingsunderVideo
&Audio>AudioSettings.
SelectMicrophonetouseanexternalmicrophoneorLinetouseaLineindevice,e.g.anaudiomixerformultiplemicrophones
oramicrophonewithabuilt-inamplier,asaudiosource.
TheMicrophonepoweroptionprovidesDCpowerforanexternalmicrophone.Microphonepowershouldonlybeusedwith
microphonesthathavenobattery.Thissettingshouldnotbeenabledwhenusingadynamicorbatterypoweredmicrophone.
Touseaprofessionalmicrophonerequiring48Vphantompower,youneedanexternalpowersupplyandabalanced-unbalanced
converter(audiotransformer)inbetween.
UsetheInputgaintocontrolthevolume(dBFullScale)oftheaudioinput.Ifthesoundistoolow,chooseahigherdB,toamplify
thesound.Ifthesoundistoohigh,choosealowerdB.TheLevelbargivesavisualrepresentationoftheaudiosignallevelindB
relativetothefull-scaleinputlevel.
•Green—thesignalisatagoodlevel.
•Yellow—thesignalisbecomingdistorted.
•Red—thesignalisdistorted.
UsetheEncodingoptiontoselectdigitalaudioencodingformat.
•AACrequiresalicenseforbothencodinganddecoding.AACistheleastcomplicatedandmostwidelyusedcodec.If
achievingthebestpossibleaudioqualityisapriority,AACistherecommendedcodectouse.AnAAClicenseisincluded
intheAxisproduct.
•G711isanunlicensedstandardcodecthatisusefulwhenintegratingaudiointoaVoIPsystem
•G726isanunlicensedspeechcodecthatismostcommonlyusedwithinthesecurityindustry.
Note
Ifrecordingaudiotoedgestorage,suchasanSDcardornetworkshare,useAACencoding.
TheSampleratedenesthenumberoftimespersecondthesoundissampled.Ahighersampleratewillprovidebetteraudio
quality,butalsorequiresagreaterbandwidth.
SettherequiredBitratedependingontheselectedencoding.Ahigherbitratewillgivebetteraudioquality.Alowerbitrate
mayhavelatencyordelay,butwillrequirelessbandwidth.
Formoreinformationaboutthesesettings,pleaseseetheonlinehelp
.
AudioOutput
AnexternalspeakercanbeconnectedtotheAudio-outconnector(abuilt-inamplierisrequiredforthis).Theoutputcanbe
connectedtoanotheramplierwithspeakers.Astereoconnectormustbeusedfortheaudioout.
ConguretheaudiooutputsettingsunderVideo&Audio>AudioSettings.
Outputgain-Controlthevolume(dBFullScale)ofthelineaudiooutput.Ifthesoundistoolow,chooseahigherdB.Ifthe
soundistoohigh,choosealowerdB.
AudioClips
AnaudioclipisasoundlethatcanbeplayedwheneventsoccurordirectlyfromtheLiveViewpage.Theaudioclipmustrstbe
uploadedtotheAxisproductorrecordedbyamicrophoneconnectedtotheproduct.
Toadd,download,modifyorremoveaudioclips,gotoVideo&Audio>AudioClips.Formoreinformationseetheonlinehelp.
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